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Prevent User from closing alert Dialog if EditText is empty

I'm using AlertDialog Box with EditText where user input his name. I would like to prevent the alertDialog from closing when EditText is Empty.
Below is my code
private void request_user_name() {
AlertDialog.Builder builder = new AlertDialog.Builder(this);
builder.setTitle("Enter name:");
final EditText input_field = new EditText(this);
input_field.setText(sharedpreferences.getString("username",""));
final SharedPreferences.Editor editor = sharedpreferences.edit();
builder.setCancelable(false);
builder.setView(input_field);
String savedName = sharedpreferences.getString(username,"");
input_field.setText(savedName);
input_field.setSelection(input_field.getText().length());
builder.setPositiveButton("OK", new DialogInterface.OnClickListener() {
#Override
public void onClick(DialogInterface dialogInterface, int i) {
name = input_field.getText().toString();
editor.putString(username, name);
editor.apply();
}
});
builder.setNegativeButton("Cancel", new DialogInterface.OnClickListener() {
#Override
public void onClick(DialogInterface dialogInterface, int i) {
dialogInterface.cancel();
request_user_name();
}
});
builder.show();
}
I tried to insert
if(TextUtils.isEmpty(name)) {
input_field.setError("Your message");
return;
}
Inside the AlertDialog Box like this, but it didn't work
private void request_user_name() {
AlertDialog.Builder builder = new AlertDialog.Builder(this);
builder.setTitle("Enter name:");
final EditText input_field = new EditText(this);
input_field.setText(sharedpreferences.getString("username",""));
final SharedPreferences.Editor editor = sharedpreferences.edit();
builder.setCancelable(false);
builder.setView(input_field);
String savedName = sharedpreferences.getString(username,"");
input_field.setText(savedName);
input_field.setSelection(input_field.getText().length());
builder.setPositiveButton("OK", new DialogInterface.OnClickListener() {
#Override
public void onClick(DialogInterface dialogInterface, int i) {
name = input_field.getText().toString();
if(TextUtils.isEmpty(name)) {
input_field.setError("Your message");
return;
}
editor.putString(username, name);
editor.apply();
}
});
builder.setNegativeButton("Cancel", new DialogInterface.OnClickListener() {
#Override
public void onClick(DialogInterface dialogInterface, int i) {
dialogInterface.cancel();
request_user_name();
}
});
builder.show();
}
Below is the image file, I have
and the image what I would like to get
Thanks in advance.

Use setCancelable(false).
Just set this
AlertDialog.Builder builder = new AlertDialog.Builder(this);
builder.setTitle("Enter name:");
builder.setCancelable(false);

You see the AlertDialog use a default click listener which after forwarding the click call dismiss by default.
In your case you have to override the default click listener from dialog itself to define your custom behavior for dialog:
//Create the AlertDialog with a reference to edit it later
final AlertDialog dialog = new AlertDialog.Builder(context)
.setView(v)
.setTitle(R.string.my_title)
.setCancelable(false)
.setPositiveButton(android.R.string.ok, null) //Set to null. We override the onclick
.setNegativeButton(android.R.string.cancel, null)
.create();
dialog.setOnShowListener(new DialogInterface.OnShowListener() {
#Override
public void onShow(DialogInterface dialogInterface) {
Button button = ((AlertDialog) dialog).getButton(AlertDialog.BUTTON_POSITIVE);
button.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View view) {
// Check if your condition is met, Dismiss once everything is OK.
dialog.dismiss();
}
});
}
});
dialog.show();

Try this sample i made. First you have to create a layout for your dialog, just customize it according to your needs.
//R.layout.new_message_dialog
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout
xmlns:android="http://schemas.android.com/apk/res/android"
android:id="#+id/checker_txt_frame"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:orientation="vertical">
<TextView
android:id="#+id/pin_header"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Send message to?"
android:textAppearance="?android:attr/textAppearanceMedium"/>
<EditText
android:id="#+id/pin_txt"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:gravity="center"
android:hint="Name"
android:inputType="text"
android:padding="10dp"
android:layout_marginTop="10dp"
android:cursorVisible="false"
android:singleLine="true" />
<TextView
android:id="#+id/pin_btn"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_gravity="right"
android:padding="10dp"
android:text="Confirm"
android:textAppearance="?android:attr/textAppearanceMedium"
android:textColor="#color/colorAccent" />
</LinearLayout>
Then inflate the view and set it to your builder.
View view = getLayoutInflater().inflate(R.layout.new_message_dialog, null, false);
AlertDialog.Builder builder = new AlertDialog.Builder(getContext());
builder.setView(view);
TextView tvConfirmBtn = view.findViewById(R.id.pin_btn);
final EditText txtName = view.findViewById(R.id.pin_txt);
final AlertDialog dialog = builder.create();
dialog.show();
tvConfirmBtn.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View view) {
String name = txtName.getText().toString().trim();
if (name.isEmpty()) {
txtName.setError("Please provide a name.");
txtName.requestFocus();
} else {
//do something here
dialog.dismiss();
}
}
});

Prevent AlertDialog from closing when EditText is empty

So without having to create a custom dialog as I currently have a number of dialog layouts and don't want to have to do it for each one, is there a way to prevent this dialog from closing when the positive button is pressed and the EditText is empty?
Currently it closes the dialog every time I hit enter and there is nothing in the EditText field.
public AlertDialog webpageDialog() {
AlertDialog.Builder webpageDialogBuilder = new AlertDialog.Builder(context);
LayoutInflater inflater = LayoutInflater.from(context);
webpageDialogBuilder.setView(inflater.inflate(R.layout.dialog_webpage, null))
.setNegativeButton(context.getString(R.string.cancel), new DialogInterface.OnClickListener() {
public void onClick(DialogInterface dialog, int id) {
dialog.cancel();
}
});
final AlertDialog webpageDialog = webpageDialogBuilder.create();
webpageDialog.setButton(DialogInterface.BUTTON_POSITIVE, context.getString(R.string.enter), new DialogInterface.OnClickListener() {
public void onClick(DialogInterface dialog, int id) {
EditText webpageInput = (EditText) webpageDialog.findViewById(R.id.dw_et_webpage_address);
Log.d(TAG, "Positive on click");
if(TextUtils.isEmpty(webpageInput.getText().toString())){
Log.d(TAG, "Edit text empty");
webpageInput.setError(context.getString(R.string.error_web_required));
} else {
Log.d(TAG, "Edit text not empty");
ms.setUriString("http://" + webpageInput.getText().toString());
ms.returnWithResult(1);
dialog.cancel();
}
Log.d(TAG, "Returning");
}
});
Log.d(TAG, "Returning dialog");
return webpageDialog;
}

this is how I'm doing it.
AlertDialog.Builder builder = new AlertDialog.Builder(this);
LinearLayout layout = new LinearLayout(this);
layout.setOrientation(LinearLayout.VERTICAL);
EditText yourEditText = new EditText(this);
layout.addView(yourEditText);
builder.setView(layout);
// Set up the buttons
builder.setPositiveButton("OK", new DialogInterface.OnClickListener() {
#Override
public void onClick(DialogInterface dialog, int which) {
}
});
builder.setNegativeButton("Cancel", new DialogInterface.OnClickListener() {
#Override
public void onClick(DialogInterface dialog, int which) {
dialog.cancel();
}
});
final AlertDialog dialog = builder.create();
dialog.show();
dialog.getButton(AlertDialog.BUTTON_POSITIVE).setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
if ("".equals(yourEditText.getText().toString().trim())) {
//this will stop your dialog from closing
yourEditText.setError("This field is required!");
return;
}
//you logic here
dialog.dismiss();
}
});

I hope following line can help,
webpageDialogBuilder.setCancelable(false);

AlertDialog Builder OnItemSelectedListener

I have a tyny, but annoying problem with the AlertDialog Builder.
I want to handle an item select in a custom made AlertDialog, but OnItemSelectedListener doesn't seem to pick my clicks.
Custom Dialog:
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="200dp"
android:layout_height="120dp"
android:layout_centerHorizontal="true"
android:layout_marginTop="60dp"
android:background="#AAFFFFFF"
android:orientation="vertical">
<TextView
android:text="English"
android:layout_width="match_parent"
android:layout_height="40dp"
android:id="#+id/lang_english"
android:gravity="center_vertical"
android:background="#color/borders"
android:paddingLeft="10dp"
android:onClick="onLanguageButtonClicked" />
<View
android:layout_height="1dp"
android:layout_width="match_parent"
android:background="#000000" />
<TextView
android:text="عربى"
android:layout_width="match_parent"
android:layout_height="40dp"
android:id="#+id/lang_arabic"
android:gravity="center_vertical"
android:background="#color/borders"
android:paddingRight="10dp"
android:onClick="onLanguageButtonClicked" />
<View
android:layout_height="1dp"
android:layout_width="match_parent"
android:background="#2e2e2e"/>
<TextView
android:text="کوردی "
android:layout_width="match_parent"
android:layout_height="40dp"
android:id="#+id/lang_kurdish"
android:gravity="center_vertical"
android:background="#color/borders"
android:paddingRight="10dp"
android:onClick="onLanguageButtonClicked" />
</LinearLayout>
On button click I open the dialog and handle it:
public void onClickDrawer(View view) {
switch (view.getId()) {
case R.id.button_account_language:
handleLanguageDialog();
break;
case R.id.button_account_currency:
handleCurrencyDialog();
break;
default:
break;
}
}
And the handler:
private void handleLanguageDialog() {
final AlertDialog.Builder builder = new AlertDialog.Builder(this);
builder.setView(R.layout.dialog_language);
builder.setOnItemSelectedListener(new AdapterView.
OnItemSelectedListener() {
#Override
public void onItemSelected(AdapterView<?> parent, View view,
int position, long id) {
SharedPreferences preferences = PreferenceManager
.getDefaultSharedPreferences(getApplicationContext());
Log.i("info", "pressed" + Integer.toString(position));
restartInLocale(new Locale(preferences.getString("locale","")));
}
#Override
public void onNothingSelected(AdapterView<?> parent) {
}
});
builder.setNegativeButton("CANCEL", new DialogInterface
.OnClickListener() {
#Override
public void onClick(DialogInterface dialogInterface, int i) {
}
});
builder.create().show();
}
Is this the correct approach or am I missing something?
Thank you in advance!

I don't this is correct Approach, you are making it very much complex. If I am not wrong then you are trying to show Language selection dialog for that you should follow the below given steps.
Create string-array inside strings.xml resource file
<string-array name="lang">
<item>English</item>
<item>عربى</item>
</string-array>
When you want to show alert dialog write down below code
private void handleLanguageDialog() {
AlertDialog.Builder builder = new AlertDialog.Builder(getActivity());
builder.setTitle(R.string.pick_color)
.setItems(R.array.lang, new DialogInterface.OnClickListener() {
public void onClick(DialogInterface dialog, int which) {
// The 'which' argument contains the index position
// of the selected item
switch(which)
{
case 0:// English
break;
case 1:// عربى
break;
}
}
});
return builder.create();
}
This is the simplest way to show list of languages in alert dialog and without any positive or negative button .

It looks a bit off. It should look like this:
#Override
public Dialog onCreateDialog(Bundle savedInstanceState) {
AlertDialog.Builder builder = new AlertDialog.Builder(getActivity());
// Get the layout inflater
LayoutInflater inflater = getActivity().getLayoutInflater();
// Inflate and set the layout for the dialog
// Pass null as the parent view because its going in the dialog layout
builder.setView(inflater.inflate(R.layout.dialog_signin, null))
// Add action buttons
.setPositiveButton(R.string.signin, new DialogInterface.OnClickListener() {
#Override
public void onClick(DialogInterface dialog, int id) {
// sign in the user ...
}
})
.setNegativeButton(R.string.cancel, new DialogInterface.OnClickListener() {
public void onClick(DialogInterface dialog, int id) {
LoginDialogFragment.this.getDialog().cancel();
}
});
return builder.create();
}
https://developer.android.com/guide/topics/ui/dialogs.html

private void handleLanguageDialog() {
ArrayList<String> listItems = new ArrayList<>();
listItems.add("English");
listItems.add("Arabic");
new AlertDialog.Builder(this)
.setTitle("title")
.setCancelable(false)
.setAdapter(new ArrayAdapter<String>(this, android.R.layout.simple_list_item_1, listItems),
new DialogInterface.OnClickListener() {
#Override
public void onClick(DialogInterface dialog, int item) {
}
}).setPositiveButton("OK", new DialogInterface.OnClickListener() {
#Override
public void onClick(DialogInterface dialog, int id) {
// sign in the user ...
}
}).setNegativeButton("CANCEL", new DialogInterface.OnClickListener() {
public void onClick(DialogInterface dialog, int id) {
}
}).show();
}

Try to use setOnItemClick listener on the list/spinner view whichever you are using to display the list instead of builder itself. Like if you are using spinner to show the list use-
final Spinner spinner = (Spinner) layout.findViewById(R.id.spinner); spinner.setOnItemSelectedListener(new OnItemSelectedListener() {
#Override
public void onItemSelected(AdapterView<?> arg0, View arg1, int arg2, long arg3){
int item = spinner.getSelectedItemPosition();
commandWriter(item);
}
#Override
public void onNothingSelected(AdapterView<?> arg0) {
}
});

Try this: add click listener to the language item in your Dialog
onItemSelected() is applied for listview or spinner items your Dialog layout dialog_language does not have those.
Try this code:
AlertDialog.Builder builder = new AlertDialog.Builder(this);
// Get the layout inflater
LayoutInflater inflater =getLayoutInflater();
View myview = inflater.inflate(R.layout.dialog_language, null);
// Inflate and set the layout for the dialog
builder.setView(myview);
TextView english = (TextView) myview.findViewById (R.id.lang_english);
english.setOnClickListener(new View.OnClickListener() {
public void onClick(View v) {
//do some stuff
SharedPreferences preferences = PreferenceManager.getDefaultSharedPreferences(getApplicationContext());
Log.i("info", "pressed" + Integer.toString(position));
restartInLocale(new Locale(preferences.getString("locale","")));
}
});
TextView arabic = (TextView) myview.findViewById (R.id.lang_arabic);
arabic.setOnClickListener(new View.OnClickListener() {
public void onClick(View v) {
//do other stuff
}
});
// Add action buttons
builder.setPositiveButton("YES", new DialogInterface.OnClickListener() {
public void onClick(DialogInterface dialog, int id) {
dialog.cancel();
}
});
builder.setNegativeButton("CANCEL", new DialogInterface.OnClickListener() {
public void onClick(DialogInterface dialog, int id) {
dialog.cancel();
}
});
builder.show();

When button is clicked the Alert Dialog does not appear

I have an Alert Dialog that has an EditText where you input text and then add it to a ListView. Then on each item there is a Button I want to make that Button make an AlertDialog. The code below does not work.
This is my code...
public class DeleteRenameList extends Activity {
Button button;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
button = (Button)findViewById(R.id.button1);
button.setOnClickListener(new OnClickListener() {
#Override
public void onClick(View v) {
AlertDialog.Builder alert=new AlertDialog.Builder(DeleteRenameList.this);
alert.setMessage("What do you want to do?");
alert.setPositiveButton("Rename", new DialogInterface.OnClickListener() {
#Override
public void onClick(DialogInterface dialog, int which) {
}
});
alert.setNegativeButton("Delete", new DialogInterface.OnClickListener() {
#Override
public void onClick(DialogInterface dialog, int which) {
dialog.cancel();
}
});
alert.setNeutralButton("Cancel", new DialogInterface.OnClickListener() {
#Override
public void onClick(DialogInterface dialog, int which) {
}
});
AlertDialog ale=alert.create();
ale.show();
}
});
}}
Please Help.

Try this:
Make your custom dialog and present it:
//Make your class named CUstomDialogClass
import android.app.Activity;
import android.app.Dialog;
import android.os.Bundle;
import android.widget.Button;
public class CustomDialogClass extends Dialog{
public Activity c;
public Dialog d;
public Button yes, no;
public CustomDialogClass(Activity a) {
super(a);
// TODO Auto-generated constructor stub
this.c = a;
}
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.customdialog);
}
}
In your MainActivity, place this code in your onCreate() method:
Button button = (Button)findViewById(R.id.yourid);
button.setOnClickListener(new OnClickListener() {
#Override
public void onClick(View v) {
final CustomDialogClass dialog = new CustomDialogClass(MainActivity.this);
dialog.setTitle("Your Title");
dialog.show();
final Timer time = new Timer();
time.schedule(new TimerTask() {
#Override
public void run() {
dialog.dismiss();
}
}, 5000);
}
});
Finally, there's the layout for custom dialog which you can modify. I just gave an example:
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical" >
<TextView
android:id="#+id/textView1"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Yout Title"
android:textAppearance="?android:attr/textAppearanceLarge" />
<TextView
android:id="#+id/textView2"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Your Message"
android:textAppearance="?android:attr/textAppearanceMedium" />
</LinearLayout>
And then you can add your listeners to it.
Hope this helps..:)

Your new onClickListener should be new View.onClickListener.
You should have something like this to start with:
Button button = (Button)findViewById(R.id.button1);
button.setOnClickListener(new View.onClickListener(){
#Override
public void onClick(View v){
AlertDialog.Builder builder = new Builder(this);
builder.setTitle("Are you sure you want to exit?")
.setIcon(R.drawable.ic_launcher)
.setPositiveButton("Yes", new DialogInterface.OnClickListener() {
#Override
public void onClick(DialogInterface dialog, int which) {
// TODO Auto-generated method stub
dialog.dismiss();
finish();
}
}).setNegativeButton("Cancel", new DialogInterface.OnClickListener() {
#Override
public void onClick(DialogInterface dialog, int which) {
// TODO Auto-generated method stub
dialog.dismiss();
}
}).create().show();
}
});

How do I code for user input in an alert dialog for an android app?

I have an android app that has two buttons. So basically what I am trying to do is when a user clicks the 'Share Button' on the page, an alert dialog box will appear that will prompt the user to enter their email address. Here is what I have so far. I've tried an EditView but it hasn't been working well for me.
Thanks in advance!
package com.colors;
import android.app.Activity;
import android.app.AlertDialog;
import android.content.Context;
import android.content.DialogInterface;
import android.os.Bundle;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;
public class MainActivity extends Activity {
final Context context = this;
private Button button;
private Button shareButton;
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
button = (Button) findViewById(R.id.button);
shareButton = (Button) findViewById(R.id.shareButton);
// add button listener for Welcome Message.
button.setOnClickListener(new OnClickListener() {
#Override
public void onClick(View arg0) {
AlertDialog.Builder alertDialogBuilder = new AlertDialog.Builder(
context);
// set the title of the Alert Dialog
alertDialogBuilder.setTitle("Welcome!");
// set dialog message
alertDialogBuilder
.setMessage("Program Description here...")
.setCancelable(false)
.setNegativeButton("OK",
new DialogInterface.OnClickListener() {
public void onClick(DialogInterface dialog,
int id) {
// if no is clicked, just close
// the dialog box and do nothing
dialog.cancel();
}
});
AlertDialog alertDialog = alertDialogBuilder.create();
alertDialog.show();
}
});
// Button listener for Share Button
shareButton.setOnClickListener(new OnClickListener() {
#Override
public void onClick(View arg0) {
AlertDialog.Builder alertDialogBuilder = new AlertDialog.Builder(
context);
// set the title of the Alert Dialog
alertDialogBuilder.setTitle("Share");
// set dialog message
alertDialogBuilder
.setMessage("Would like to a user input here.")
.setCancelable(false)
.setPositiveButton("Send!",
new DialogInterface.OnClickListener() {
public void onClick(DialogInterface dialog,
int id) {
// if no is clicked, just close
// the dialog box and do nothing
dialog.cancel();
}
})
.setNegativeButton("Cancel",
new DialogInterface.OnClickListener() {
public void onClick(DialogInterface dialog,
int id) {
// if no is clicked, just close
// the dialog box and do nothing
dialog.cancel();
}
});
AlertDialog alertDialog = alertDialogBuilder.create();
alertDialog.show();
}
});
}
}

This may helpful to you.
shareButton.setOnClickListener(new OnClickListener() {
public void onClick(View v) {
AlertDialog.Builder al1 = new Builder(
AgriListView.this);
al1.setMessage("Share Something");
al1.setPositiveButton("Share",
new DialogInterface.OnClickListener() {
public void onClick(
DialogInterface dialog,
int which) {
final EditText input = new EditText(
AgriListView.this);
input.setSingleLine();
AlertDialog.Builder al = new Builder(
AgriListView.this);
al.setTitle("Enter New Value");
al.setView(input);
al.setCancelable(true);
al.setIcon(R.drawable.bt);
al.setPositiveButton(
"OK",
new DialogInterface.OnClickListener() {
public void onClick(
DialogInterface dialog,
int which) {
int len = input
.length();
if (!(len == 0)) {
Toast.makeText(
AgriListView.this,
"Entered text is: "+input.getText()
,
Toast.LENGTH_SHORT)
.show();
} else {
Toast.makeText(
getApplicationContext(),
"Enter Value Properly",
Toast.LENGTH_LONG)
.show();
}
}
});
al.setNegativeButton(
"Cancel",
new DialogInterface.OnClickListener() {
public void onClick(
DialogInterface dialog,
int which) {
dialog.cancel();
}
});
AlertDialog alert = al.create();
alert.show();
}
});
al1.setNegativeButton("Cancel",
new DialogInterface.OnClickListener() {
public void onClick(
DialogInterface dialog,
int which) {
dialog.cancel();
}
});
AlertDialog alert1 = al1.create();
alert1.show();
}
});
This code create dialog with Edittext value.

You could do something like this.
AlertDialog.Builder alert = new AlertDialog.Builder(this);
alert.setTitle("Title");
alert.setMessage("Message");
// Set an EditText view to get user input
final EditText input = new EditText(this);
alert.setView(input);
alert.setPositiveButton("Ok", new DialogInterface.OnClickListener() {
public void onClick(DialogInterface dialog, int whichButton) {
String value = input.getText();
// Do something with value!
}
});
alert.setNegativeButton("Cancel", new DialogInterface.OnClickListener() {
public void onClick(DialogInterface dialog, int whichButton) {
// Canceled.
}
});
alert.show();